Radiator overflow



March 10, 1931. I AGN R' 1,195,457

RADIATOR OVERFLOW Filed May 8, 1928 1 M van {oz Patented Mar. 10, 1931 UNITED STATES HARRY WAGNER, OF ST. LOUIS, MISSOURI RADIATOR Application filed. May 8,

The cooling liquid in the radiator of an internal combustion engine expands when heated and wastes either by overflowing or passing off as vapor. This is objectionable when an anti-freeze mixture is employed in cold weather because of the expense incident to replacement.

The present invention provides simple and inexpensive means for preventing waste and obviating frequent replacement of the radiator liquid, since the vapor and overflow are trapped and automatically returned to the radiator as the latter cools.

The invention contemplates a tank, or receptacle, of any shape and size conveniently disposed to be out of the way and hidden from view, connected with the top of the radiator and disposed at such an elevation that the overflow and condensate automatically :9 return to the radiator.

lVhile the drawing illustrates a preferred embodiment of the invention, it is to be understood that in adapting the means to meet specific needs and requirements the deslgn may be varied and such other changes in the minor details of construction may be resorted to within the scope of the invention as claimed, without departing from the sp1r1t thereof.

For a full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawing hereto attached, in which,

Figure 1 is a side view lllustratlve of an embodiment of the invention.

Figure 2 is an enlarged sectlonal view of a tank or receptacle for the overflow and vapor from the radiator of an internal combust-ion engine.

Corresponding and like parts are referred to in the following description and deslgnated in the several views of the drawing by like reference characters.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 1 denotes an internal combustion engine and 2 the radiator included in the cooling system, such parts being of well known construction and arrangement.

OVERFLOW 1928. Serial No. 276,119.

The numeral 3 denotes a tank or receptacle adapted to receive the overflow and vapor from the radiator when heated. This tank may be of any capacity and design and is conveniently located to be out of the way and not interfere with the appearance of an automobile or other vehicle. The tank is usually located beneath the cowl or hood and at an elevation to admit of the overflow and condensate returning to the radiator. A pipe 4 connects the bottom of the tank 3 with the top of the radiator 2 so that overflow and vapor from the radiator will readily enter the tank and accumulate therein, the vapor condensing in the pipe and tank. An overflow pipe 5 connects with the bottom ofthe tank 3 and extends to the top thereof and slants at its up? per end, as indicated most clearly in Figure 2 of the drawings to insure the maintenance of an outlet for any possible overflow in the event of the tank filling to a critical extent.

The pipe 4 is preferably flush with the bot tom of the tank to drain the latter and admit of all the contents returning to the radiator 2.

When the radiator becomes heated vapor passes off therefrom through the pipe 4 into the tank 3 and condenses and accumulates in the tank. Should the radiator heat to such an extent as to cause the liquid to flow therefrom it is directed by the pipe 4 into the tank 3. Should the accumulation be such as to fill. the tank 3 or the pressure therein become critical a release is provided by means of the overflow pipe 5 through which the excess of pressure or liquid escapes. When the radiator cools the contents of the tank 3 return by way of the pipe 4 to the radiator and in consequence, waste of antifreeze mixture is prevented and frequent refilling of the radiator overcome.

Having thus described the invention, I claim:

The combination with the radiator included in the cooling system of an internal combustion engine, of a concealed tank remotely situated from the radiator and at an elevation wholly above the normallev'el of the water therein, a pipe leading from the bottom of the tank and connecting with the top of the radiator and in communication therewith at a point coinciding with the normal Water level therein, and an overflow pipe connected with the bottom of the tank and extending upwardly therein and terminating adjacent the top thereof and having its upper end slanted.

In testimony whereof I afiix my signature.

HARRY WAGNER. L. 5. 

